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  • Adhesives

Desmocoll® 540/4

Predominantly linear, flexible hydroxyl polyurethane with a exremly high crystallisation rate. It has outstanding adhesion on PVC substrates, high green strength and heat resistance of the bonds.

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About

Product Types

  • PU resin

Material

Adhesives
Solventborne, Heat activated

General Characterization

Desmocoll 540/4 is a predominantly linear hydroxyl polyurethane.
Desmocoll 540/4 is a flexible polyurethane with an extremely high crystallization rate and very low thermoplasticity. It is characterised by its high green strength and the heat resistance of the bonds.
Desmocoll 540/4 has outstanding adhesion on PVC substrates and high resistance to the most commonly used PVC plasticizers.

Storage Conditions

Desmocoll 540/4 should be stored in tightly sealed original containers and protected from direct sunlight, moisture, heat, and foreign materials. Recommended storage temperature is 10º-25ºC.

Sampling

No data available

Packaging Type

No data available

Technical Properties & Datasheets

Characteristics

Property Name Test Method Unit Value
Hot tack life min. approx. 4
Crystallization min. approx. 10
Hydroxyl content % < 0.1
Heat resistance °C approx. 80
Bondability of materials containing plasticizers Excellent
Minimum activation temperature °C approx. 60
Density g/ml approx. 1.2

Specifications

Property Name Test Method Unit Value
Solution viscosity , 15% inbutanone-2 (MEK)at 23°C, Haake mPa∙s 1,600 - 2,100

Downloads

Technical Data Sheet
Safety Data Sheet
No direct download available, please visit www.productsafetyfirst.covestro.com

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